Abstract: An apparatus is provided to enable power supply input to be isolated from power supply output. Power is received from a first power signal at a first of a plurality of charge stores. A second power signal is output from a second of the plurality of charge stores. The second power signal is isolated from the first power supply. The first charge store can be charged from the power input whilst isolated from the power output. The second charge store can be discharged to the power output, while isolated from the power input.

Abstract: A power supply clamp connectable between power rails of an electronic circuit comprises a switching component which is switchable to provide a connection path between the power rails of the electronic circuit; a first detector configured to detect an electrostatic discharge event having a first characteristic time period and to generate a detector output signal in response to the detection; a series of one or more successive intermediate amplification stages between the first detector and the switching component, the series of amplification stages providing a control signal path for a control signal to control switching of the switching component in response to the detector output signal; and a second detector configured to detect an electrostatic discharge event having a second characteristic time period, shorter than the first characteristic time period, the second detector being provided at a node in the control signal path subsequent to the first detector (for example, at a second or subsequent one of the

Abstract: Power is received from a first power signal at a first of a plurality of charge stores. A second power signal is output from a second of the plurality of charge stores. The second power signal is isolated from the first power supply.

Abstract: A power supply clamp connectable between power rails of an electronic circuit comprises a switching component which is switchable to provide a connection path between the power rails of the electronic circuit; a first detector configured to detect an electrostatic discharge event having a first characteristic time period and to generate a detector output signal in response to the detection; a series of one or more successive intermediate amplification stages between the first detector and the switching component, the series of amplification stages providing a control signal path for a control signal to control switching of the switching component in response to the detector output signal; and a second detector configured to detect an electrostatic discharge event having a second characteristic time period, shorter than the first characteristic time period, the second detector being provided at a node in the control signal path subsequent to the first detector (for example, at a second or subsequent one of the